Lighting fixture



Nov. 28, 1933. CHANQCK Er AL 1,936,933

LIGHTING FIXTURE Filed March 18, 1933 7715000125 Cm/vacx ER rw/v FEE YER 32 fldwzzviii Patented Nov. 28, 1933 1,936,933 r LIGHTING p v Theodore Chanock, Chicago, and- Erwin Freyer, I

Oak Park, Ill.-

Application Math is, 1933; Serial M 6155; Claims. 3(01. sic- 31) The present invention relates. tolighting; fixtures, and more particularly to a fixture of the indirect type in which an inverted'bowl-shaped reflector is employed to throw light rays upward- 1y from the fixture. I

The principal objects of this invention reside in providing a protecting cover for the inverted reflector in order to avoid accumulations-of dust and foreign matter within the samewhich have a tendency to dim the same and reduce its efficiency; to provide a circulation of air through thethus closed reflector in order to ventilate-the same and'prevent' overheating; to provide-a sim-- ple mode of mounting a decorative shade upon the 16 i fixture which allows said shade to'be readily re movedwhenever desired; and to fabricate and assemble the before-mentioned elements in amanner that will permit such parts as the cover,

the shade, the shade-mounting bracket and the: 29.; reflector'to be readily dismantled for renovation or replacement. Further objects are to provide a device of the character disclosed'thatis novel in construction, easy to manipulate, dependable in operation, and economical to manufacture.

All of the numerous objects and advantages of ing that forms a part of this specification, in

which;

Figure 1 is a side elevation of this invention, 5 with portions broken away and in vertical section to disclose the interior constructions.

Figure 2 is a top plan of the shade mounting bracket seated on the reflector, drawn to a larger scale than Figure 1, and,

Figure 3 is a top plan of'a fragment of the ring or annular band of said bracket removed from the reflector.

Figure 4 is an enlarged detail in vertical section showing portions of the reflector, cover and shade mounting structure in assembly.

Figure 5 is an enlarged detail in vertical section showing the lower portion or neck of the reflector. I

The drawing is to be understood as being more or less schematic, and is for the purpose of disclosing a typical or preferred form in which the improved fixture may be made, it being understood, of course, that modifications of the predeparture from the principles involved.

cise structures disclosed may be made without v ably with ashade 2 t of any suitable or orna- The structure shown-in 1" comprises a support in'the form'of 'a standard 10,. arising from a wide base, and having-radial arins ll atits upper portion thathave upturned extensions in which suitable electric sockets" (notshownl 6o areadisposed to receive a plurality of lamps or bulbsyl2. The electric current to;the-s ockets and; bulbs-is controlled by abutton switch 1 3*on a con.- venient portion of the fixture. j

Above the'junction of thearms with the st'and- 5' ard-thelatter is provide'd'with a cup-shaped metal husk 14 that'surrounds a centrally disposed-electric socket (notshown) .to receivea large lamp or bulb 15" that 5 extends up: above the-horizontab plane of the small} bulbs-12 and the lighting of- X which'is controlled by ap'ull-chainswitch desig-1 nated' by the numeral 16; '1 l I The upDeriportion of husk-14 is threadedtdb engageda withthreads at the lower'end of therevduced neckijportion-lT of the reflector 18. The 75, body'of the reflector is bowl-shaped, being flared while the inner surface is stippledor roughened ,in order to break up the light rays that pass upwardly through the cover from the bulb and reflecton This cover 20 prevents dustand foreign matter from falling into the reflector and thus reducing'its efficiency.

On account of closing the top of thereflector it will be obvious the interior thereof will become heated from the temperature radiated by the bulb. To overcome this suitable vent openings 21 are provided in the upper portions of the-. reflector below the seat 19, and'in the lower v portion of the neck other vent openings 22 are provided which-are formed by making an inverted U-shapecut or slit in the neck'of the reflector so that: the intermediate portion-of vthe metal between the jparallel arms of each slit may be bent inwardly to provide vanes 23, This permits, air to enter at the lower portion of the neck but prevents light rays from passing outwardly The .fixture thus described is provided preferauxiliary lamps 12 and up above the horizontal plane at the top of'the reflector 18 and its domeshaped cover. 7

The shade is openat its topand is made with the usual wire or metal frame which has radiating arms 25 extending inwardly-from its upper edge. In order to mount the shade in the man-' ner shown an annulus or circular band 26 is prpvided which is slightly larger in diameter than the upper edge of reflector 18, and it is provided with a spider bracket consisting. of radiating arms 2'? that bow upwardly and arch over the'domecover of the reflector in the manner shovvn in V V l t lated,

The lower end portions of-these arms are bent laterally into horizontal planes to provide feet? Figure l. t

28 that rest upon the upper edge of the reflector body and extend across the top surfaceof the circumferential edge of the cover asshown 'in Figure 4 to maintain the cover in its seat;

The upper inner ends of the arms 27 are connected to a boss 29 above the cover, which is in alinement with the axis of the reflector; The

inner ends of the arms of the shadeare connected to a'central boss 30 which} is connected to the boss 29 of the bracket by a screwco-operating with the ornamentaltip 31. i. 1

The annular band 26 is of such width, or vertical height, that its lower edgeislbelow the horizontal plane of the vent openings2l in the ireflector so that lightraysfrom the interior of the reflector-which may pass through said. openings I will strike against thisdepending apron and :will 7 notbe transmitted to the'shade'where such light rays might mar the artistic effect of the shade; *In order that the mounting bracket may be readily attached to or moved from the reflector f a friction device in the form of a spring tongue 32 is provided upon the inner'surface of the annulus or band 26 and whenlnot in use, as shown in Figure 3, this tongue projects spirally v also be seen that the shade is illuminated'solely rays upward, a light transmitting cover closing into the. ring,-but when the bracket is mounted upon the reflector this tongue will frictionallyengage the adjacent edge 0f the reflector and removably maintain the bracket in position. i

It will readily be seen that the shade, with its spider bracket may be removed bodily from the reflector by raising the vaforesaid structure upwardly torelease'it from the reflector. It will irom the auxiliary bulbs 12, and that the indirect light will be reflected by the reflector upwardly through the translucent cover 20 and directed to the ceiling or other plane surface above the fixture, while the reflector is protected from dust andforeign matter and is effectively venti- What weclaim is:- r L 1'. An illuminating" devicecomprising an. inverted bowl-shaped reflector for directing light 5 9 thetop of saidvreflector, said reflector having vent openings below said cover, a-shade surrounding said reflector, andmeans'for mounting said'shade consisting of radially disposed arms arched upward from said reflector and having portions that engagesaid cover, and an annular band connecting the lower ends of said arms and extendingbelow saidvent openings. v 2. Anilluminating device comprising an in verted bowl-shaped reflector for directing light rays upward, an annular seat adjacent ithe top of saidreflector said reflectoriprovided with vent openings below said seat, .a light transmitting cover disposed'in said seat to close the'top of p said reflecton a shade'surrounding said reflector, 1-10.

and means'for mounting 'saidshade consisting of radiallydisposed arms arched upward from said reflector and having portions that engage said cover, and an annular band connecting the lower endstof said arms and extending below. said vent openings. i 7

- THEODORE CHANOCK;

.- Y :rERWIN EREYER. I 

